Rails - Jul 2008 - Newbie: how to use link_to to create ftp url to download a file?

Hi everyone,

I''m struggling with link_to.
I''m trying to generate a link that will enable my web users to ftp a
file.

Table ''calls'' contains a field ''filename''.
There the requirement to
download this file via ftp.

For example:
calls.filename = ''/project/tmp/file/README.txt''

should convert to
<a 
href="ftp:///project/tmp/file/README.txt">/project/tmp/file/README.txt</a>
(or whatever the number of slashes is after ''ftp:'')

Thanks, Birgit

-- 
-- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
-- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
-- Company no: 1769350
-- Registered Office:
-- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
-- tel.: +44 (0)161 237 0660
-- <URL: http://www.westhawk.co.uk>

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Hi,

I realise there is one more issue here.
The ''calls'' table also contains the ip address of the machine
that hosts
the file.

So
calls.ip_address = 123.456.789.123

This should find its way to the ftp url as well:
ftp://123.456.789.123/project/tmp/file/README.txt

Thanks, Birgit

On 17/07/08 13:34, Birgit Arkesteijn wrote:
> Hi everyone,
> 
> I''m struggling with link_to.
> I''m trying to generate a link that will enable my web users to ftp
a file.
> 
> Table ''calls'' contains a field
''filename''. There the requirement to
> download this file via ftp.
> 
> For example:
> calls.filename = ''/project/tmp/file/README.txt''
> 
> should convert to
> <a 
>
href="ftp:///project/tmp/file/README.txt">/project/tmp/file/README.txt</a>
> (or whatever the number of slashes is after ''ftp:'')
> 
> Thanks, Birgit
> 
-- 
-- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
-- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
-- Company no: 1769350
-- Registered Office:
-- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
-- tel.: +44 (0)161 237 0660
-- <URL: http://www.westhawk.co.uk>

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On 17 Jul 2008, at 13:38, Birgit Arkesteijn wrote:
>
> Hi,
>
> I realise there is one more issue here.
> The ''calls'' table also contains the ip address of the
machine that
> hosts
> the file.
>
Do the :protocol and :host options help you?

Fred
> So
> calls.ip_address = 123.456.789.123
>
> This should find its way to the ftp url as well:
> ftp://123.456.789.123/project/tmp/file/README.txt
>
> Thanks, Birgit
>
> On 17/07/08 13:34, Birgit Arkesteijn wrote:
>> Hi everyone,
>>
>> I''m struggling with link_to.
>> I''m trying to generate a link that will enable my web users to
ftp
>> a file.
>>
>> Table ''calls'' contains a field
''filename''. There the requirement to
>> download this file via ftp.
>>
>> For example:
>> calls.filename = ''/project/tmp/file/README.txt''
>>
>> should convert to
>> <a
>>
href="ftp:///project/tmp/file/README.txt">/project/tmp/file/
>> README.txt</a>
>> (or whatever the number of slashes is after ''ftp:'')
>>
>> Thanks, Birgit
>>
>
> -- 
> -- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
> -- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
> -- Company no: 1769350
> -- Registered Office:
> -- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
> -- tel.: +44 (0)161 237 0660
> -- <URL: http://www.westhawk.co.uk>
>
> >

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Hi Fred,

Thanks for your help.
I''ve seen :protocol and :host. I''m more struggling what to do
with
call.filename itself?

If "call.filename" is the value, what is the key that goes with it?
<%= link_to call.filename,
   {:protocol => ''ftp'', :host => call.ip_address} %>

Thanks, Birgit

On 17/07/08 13:56, Frederick Cheung wrote:
> 
> On 17 Jul 2008, at 13:38, Birgit Arkesteijn wrote:
> 
>> Hi,
>>
>> I realise there is one more issue here.
>> The ''calls'' table also contains the ip address of the
machine that
>> hosts
>> the file.
>>
> Do the :protocol and :host options help you?
> 
> Fred
> 
>> So
>> calls.ip_address = 123.456.789.123
>>
>> This should find its way to the ftp url as well:
>> ftp://123.456.789.123/project/tmp/file/README.txt
>>
>> Thanks, Birgit
>>
>> On 17/07/08 13:34, Birgit Arkesteijn wrote:
>>> Hi everyone,
>>>
>>> I''m struggling with link_to.
>>> I''m trying to generate a link that will enable my web
users to ftp
>>> a file.
>>>
>>> Table ''calls'' contains a field
''filename''. There the requirement to
>>> download this file via ftp.
>>>
>>> For example:
>>> calls.filename = ''/project/tmp/file/README.txt''
>>>
>>> should convert to
>>> <a
>>>
href="ftp:///project/tmp/file/README.txt">/project/tmp/file/
>>> README.txt</a>
>>> (or whatever the number of slashes is after
''ftp:'')
>>>
>>> Thanks, Birgit
>>>
>> -- 
>> -- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
>> -- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
>> -- Company no: 1769350
>> -- Registered Office:
>> -- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
>> -- tel.: +44 (0)161 237 0660
>> -- <URL: http://www.westhawk.co.uk>
>>
> 
> 
> > 
-- 
-- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
-- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
-- Company no: 1769350
-- Registered Office:
-- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
-- tel.: +44 (0)161 237 0660
-- <URL: http://www.westhawk.co.uk>

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Hi Everyone,

For those who might struggle like myself, this is how I solved my 
problem in the end.

I added a helper method to my call model, called to_url():
def to_url(call)
     if (call.filename) then
         uri2 = URI::FTP.build({:host => call.ip_address,
                 :path => call.filename})
         uri2.to_s
     else
         ''''
     end
end

In my index view, I call:
<%= link_to call.filename, to_url(call) %>

Cheers, Birgit


On 17/07/08 14:54, Birgit Arkesteijn wrote:
> Hi Fred,
> 
> Thanks for your help.
> I''ve seen :protocol and :host. I''m more struggling what
to do with
> call.filename itself?
> 
> If "call.filename" is the value, what is the key that goes with
it?
> <%= link_to call.filename,
>    {:protocol => ''ftp'', :host => call.ip_address}
%>
> 
> Thanks, Birgit
> 
> On 17/07/08 13:56, Frederick Cheung wrote:
>> On 17 Jul 2008, at 13:38, Birgit Arkesteijn wrote:
>>
>>> Hi,
>>>
>>> I realise there is one more issue here.
>>> The ''calls'' table also contains the ip address of
the machine that
>>> hosts
>>> the file.
>>>
>> Do the :protocol and :host options help you?
>>
>> Fred
>>
>>> So
>>> calls.ip_address = 123.456.789.123
>>>
>>> This should find its way to the ftp url as well:
>>> ftp://123.456.789.123/project/tmp/file/README.txt
>>>
>>> Thanks, Birgit
>>>
>>> On 17/07/08 13:34, Birgit Arkesteijn wrote:
>>>> Hi everyone,
>>>>
>>>> I''m struggling with link_to.
>>>> I''m trying to generate a link that will enable my web
users to ftp
>>>> a file.
>>>>
>>>> Table ''calls'' contains a field
''filename''. There the requirement to
>>>> download this file via ftp.
>>>>
>>>> For example:
>>>> calls.filename =
''/project/tmp/file/README.txt''
>>>>
>>>> should convert to
>>>> <a
>>>>
href="ftp:///project/tmp/file/README.txt">/project/tmp/file/
>>>> README.txt</a>
>>>> (or whatever the number of slashes is after
''ftp:'')
>>>>
>>>> Thanks, Birgit

-- 
-- Birgit Arkesteijn, birgit-YRFHH29wTjy9FHfhHBbuYA@public.gmane.org,
-- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1 5LN, UK
-- Company no: 1769350
-- Registered Office:
-- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
-- tel.: +44 (0)161 237 0660
-- <URL: http://www.westhawk.co.uk>

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